1. Department of Therapeutic Research and Medicines Evaluation, Istituto Superiore di Sanità, Rome, Italy
2. Department of Obstetrics and Neonatology, Città della Salute e della Scienza Hospital, and University of Turin, Turin, Italy
3. Department of Infectious Diseases, Catholic University, Rome, Italy
4. Department of Obstetrics and Gynaecology, IRCCS S. Matteo, Pavia, Italy
5. Department of Medical and Surgical Sciences, Policlinico Sant’Orsola-Malpighi and University of Bologna, Bologna, Italy
6. Department of Medical Specialties, Infectious Diseases Clinic, University of Modena and Reggio Emilia, Modena, Italy
7. Department of Infectious Diseases and Hepatology, Azienda Ospedaliera di Parma, Parma, Italy
8. Department of Neurosciences, Reproductive and Dentistry Science, University Federico II Naples, Naples, Italy
9. Infectious Diseases Unit, S. Antonio Abate Hospital, Trapani, Italy
10. Department of Obstetrics and Gynaecology, DMSD San Paolo Hospital Medical School, University of Milan, Milan, Italy